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decapod

(Encyclopedia) decapoddecapoddĕkˈəpŏdˌ [key] (Gr.,=10 feet), name for invertebrate animals of the crustacean order Decapoda (phylum Arthropoda) including the crabs, the lobsters and crayfish, and the…

Q fever

(Encyclopedia) Q fever, disease caused by Coxiella burnetii, a small, Gram-negative bacterium. The bacterium infects livestock (cattle, goats, and sheep) and other domesticated animals, and is found…

horn, in zoology

(Encyclopedia) horn, in zoology, one of a pair of structures projecting from the head of a hoofed animal, used chiefly as a weapon. In cattle, sheep, Old World antelopes, and related animals the…

Snyders, Frans

(Encyclopedia) Snyders, FransSnyders, Fransfräns snīˈdərs [key], 1579–1657, most celebrated Flemish still-life and animal painter, b. Antwerp. He studied with Bruegel, the younger, and Hendrik van…

Some Types of Scientists

Scientists of all sorts There are many different types of scientists, who work on different types of science. Now, when we say "scientist" we usually mean someone who studies the natural sciences.…

Superlatives: Biggest, tallest, fastest

Homework Center – Frequently Asked Questions Superlatives Biggest, Fastest, Smallest, Richest, Highest, Driest, Deadliest . . . What is the tallest building in the world? Where are…

adaptation

(Encyclopedia) adaptation, in biology, has several meanings. It can mean the adjustment of living matter to environmental conditions and to other living things either in an organism's lifetime (…

protozoan

(Encyclopedia) protozoanprotozoanprōˌtəzōˈən [key], informal term for the unicellular heterotrophs of the kingdom Protista. Protozoans comprise a large, diverse assortment of microscopic or near-…

photosynthesis

(Encyclopedia) photosynthesisphotosynthesisfōˌtōsĭnˈthəsĭs [key], process in which green plants, algae, and cyanobacteria utilize the energy of sunlight to manufacture carbohydrates from carbon…

DK Science: Hunter Or Scavenger?

CarnivoreTeethAwesome jawsStereoscopic eyesightLeg musclesModern hunters and scavengersTyrannosaurus profileAvailability of food for scavenging Tyrannosaurus was the biggest, fiercest, most…